438 
A. E. Verrill — North American Cephalopods. 
Figure 3. — Rossia sublevis. Ventral view, enlarged 14 diameters. 
Figure 4. — Stoloteuthis leucoptera Verrill. Female. Young, ventral view, enlarged 3 
diameters. 
Figure 5. — The same. Male. A larger specimen, taken in 1879, enlarged 14 diameters. 
Plate XXX II. 
Figure 1. — Stauroteuthis syrtensis V. Dorsal view, N natural size. 
Figure 2.— The same. Lower side of head; s, siphon; e, eye; a, the auditory pore. 
Figure 3. — The same. The siphon, turned back. 
Figures 4 and 5. — The same. Superior and inferior mandibles, enlarged 2f diameters. 
This plate was drawn by the author, from the alcoholic specimen, except figs. 4 and 
5, which are by J. H. Emerton. 
Plate XXXIII. 
Figure 1. — Octopus Bairdii Verrill. Male. Ventral view, natural size: h, terminal 
organ of the hectocotylized arm ; i, the groove along the lower side of the arm. 
Figure la. — The same specimen. Hectocotylized arm, enlarged two diameters. 
Figure 2. — Parasira catenulata Steenst. Female. Front view, 4 natural size. 
Figure 2a. — The same specimen. Side view, 4 natural size. 
Plate XXXIV. 
Figure 1. — Loligo Pealei , var. pallida V. Male. Dorsal view, about 4 natural size. 
Figure 2. — The same. Pen, about 4 natural size. 
Figure 3. — The same. Portion of radula, much enlarged. 
Figure 4. — The same. Upper mandible: a, rostrum or tip of the beak; b, the notch; 
c, the inner end of ala; d, the frontal lamina; e, the palatine lamina: ab, the 
cutting edge of beak ; be, anterior or cutting edge of ala. 
Figure 4a. — Lower inaudible : a, rostrum; ab, cutting edge; be, anterior edge of ala ; 
d, mentum or chin ; e, gular lamina. 
Figure 5. — Octopus Bairdii V. Young male. Side-view from a living specimen, 
nearly natural size. 
Figure 6. — The same. Dorsal view, from life, nearly natural size. 
Figs. 3, 4, 4a, were drawn by the author ; the others by J. H. Emerton. 
Plate XXXV. 
Figure 1. — Octojms leutus V. Female. Original specimen. Ventral view, f natural 
size. 
Figure 2. — The same specimen. Dorsal view, § natural size. 
Plate XXXVI. 
Figure 1. — Octopus piscatorum V. Female. Original type. Ventral view, f nat- 
ural size. 
Figure 2. — The same specimen. Dorsal view. 
Figure 3. — Octopus obesus V. Male. Original type. Basal portion of one of the 
lateral arms, to show the arrangement of suckers, natural size. 
Figure 4. — The same specimen. Terminal portion of the hectocotylized arm, en- 
larged 14 diameters. 
Figure 5. — Sthenoteuthis pte^opus V,, from Bermuda. Female. Anterior end of 
pen, natural size. 
